[Asterisk-Users] SIP Asterisk -> Nikotel disconnects after 1 Minute

[Daniel Chabrol]

Hello list!

I'm using "Asterisk CVS-11/22/03-04:28:51" and try to route my normal 
(classic) phone calls via nikotel (www.nikotel.com). I can talk about 1 
minute and get then disconnected. Here my current configuration parts 
which affect nikotel:

register => chabrol:PASSWORD_REMOVED at nikotel/500

[nikotel]
type=friend
secret=PASSWORD_REMOVED
username=chabrol
fromuser=chabrol
host=calamar0.nikotel.com
qualify=1000
context=internal

I also tried the register without /500 because there are no calls routed 
inwards via nikotel and configured the type type=peer. Additionally I 
tried to set  auth=md5 and left off the qualify parameter. But it 
changed nothing.

In the extension file i use:
[chabrol]
include => internal
exten => _00N.,1,Dial(SIP/${EXTEN:2}@nikotel)

Any ideas?

Best regards,
Daniel